77683406 has 4 divisors (see below), whose sum is σ = 116525112. Its totient is φ = 38841702.

The previous prime is 77683379. The next prime is 77683429. The reversal of 77683406 is 60438677.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19420850 + ... + 19420853.

It is an arithmetic number, because the mean of its divisors is an integer number (29131278).

Almost surely, 2^77683406 is an apocalyptic number.

77683406 is a deficient number, since it is larger than the sum of its proper divisors (38841706).

77683406 is a wasteful number, since it uses less digits than its factorization.

77683406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38841705.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 77683406 is about 8813.8190360365. The cubic root of 77683406 is about 426.6870081719.

The spelling of 77683406 in words is "seventy-seven million, six hundred eighty-three thousand, four hundred six".